Change-speed gear



Eek. 2'6, V. LANCIA CHANGE SPEED GEAR Filed Dec. 14. 1922 2 Sheets-Sheet 3 A g g 5 TEL W1 VINCENZO LANCIA, OF TURIN, ITALY.

omivcnsrnnn GEAR.

Application filed December 14, 1922. Serial No. 606,947.

To all whom it may concern:

Be it known that I, VINonNzo LANCIA, a subject of the King of Italy, residing at Turin, Italy, have invented new and useful Improvements in Change-S eed Gears; and I do hereby declare the f0 lowing to be a full, clear, and exact description of the same.

The present invention relates to change speed gears of the kind comprising a plurality of sliding pinions, articularly for motor cars and similar app iances, and has for its object an arrangement for the control of said sliding pinions when the change speed gear is arranged at a distance from its control lever.

The control device of the change speed gear according to this invention comprises a spindle mounted to oscillate and to move longitudinally, which is provided with a member adapted to engage either of a set of forks each shifting one of the sliding pinions.

This invention provides also means for properly locking the control member against undue movements.

On the annexed drawing is shown an embodiment of the present invention, and Figure 1 is a genera view of a motor car showing the respective position of the change speed gear and of its control lever; Figure 2 is a ragmentary sectional view at a larger scale ta en along the axis of the controlling spindle; Figure 3 is a fra mentary section on line 33 of Figure 4; i ure 4 is a section on line 4-4 of Figure 2; ig-

ure 5 is a section of the actuating deviceon line 5-5 of Figure 2.

In said drawing, 1 is the change speed gear box fastened on the vehicle frame and comprising driving and driven shafts with their respective pinions.

Sliding pinions 2 and 3 are provided to mesh with the pinions of the chan e speed gear for the purpose of producing the transmission under the desired ratio; each of these sliding pinions 2 and 3 is provided with a ooved collar 2'-3' respectively engaged a fork 45 each soli with a sleeve 6- respectively mounted to slide alon a spindle 89 secured in the box 1; suita le stops as spring pressed balls 26 are provided to engage notches 27 of said sleeves to lock them in-the desired position. Each of said sleeves is provided with a air of projections 10 providing an interme late recess adapted to be engaged by an actuating part for the purpose of shifting said sliding pinion.

Intermediate the spindles 8 and 9 and parallel therewith is arranged a spindle 11 mounted to move angularly and longitudinally in bushings 12 provided in the box 1,

and on said spindle is fastened by a bolt 13 a sleeve 13 having two teeth 14 and 15 respectively. The tooth 14 is adapted to enter either of the recesses provided between the projections 10 of the sleeves 6 and 7 to engage either of these sleeves, while the tooth 15 has such a size and position as to be engaged between the ends of stationary concentric pins 1616', fastened on the box 1, when the sleeve 13 is in its intermediate position shown by Figures 2 and 3 in which both pinions 2 and 3 are out of mesh with the associate ones and the tooth 14 is in its intermediate position with respect to, recesses of the sleeves 6 and 7 (Fig ure 3). Said tooth 15 clears said pins 1616' and then it may slide along either the side of either of them as soon as the sleeve 13 and tooth 14 are oscillated to carry this tooth 14 into engagement with either of the sleeves 6-7.

The control spindle 11 is actuated by 1 .20 engaged by a ball head 21 which is carried by an actuating lever 22 which floats in a socket 23 by means of its ball pivot 28; said socket 23 is carried by the frame member 24 on which is also mounted as usually a lever 25 intended to operate the brake gear not shown.

In said pivot 28 are located ball stops 29 pressed y a spring 30 to en age recesses of the socket for resiliently ieeping the lever 22 in its ordinary osition.

The operation is as ollows: When the arts are in the position of Figures 2 and 3,

0th pinions 2 and 3 are in inoperatiye position and the tooth 15 of the sleeve 13 is I allel with the axis of the shaft 18 and this latter is moved longitudinally with the spindle 11, sleeve 13, tooth 14, either of sleeves 6 or 7 engaged therewith, to carry the pinion shifted by the engaged sleeve in the desired position.

In this operation the spindle 11 and 1e ver 22 cannot be unduly oscillated because the tooth 15 runs along one of the pins 1616 and prevents any undue operation.

For carrying the parts in the position of Figure 2 preparatory to a new operation, the lever 22 is rocked to first shift the spindle 11 longitudinally and then angularly.

This invention provides a simple arrangement by which the'change speed gear may be arranged at a distance from its controlling lever which in motor cars must be located in a well defined position while the change speed gear may be required to be located at a point distant from the driver seat and actuating lever.

Attention is called to my other patents and patent applications in res ect of the features illustrated in this app ication but not claimed per se.

What I claim as my invention and desire to secure by United States Letters Patent is 1. In a change speed gear comprising a plurality of slidable pinions, supports an allel with the axis of said pinions, mem rs mounted to slide along said supports each member engaging one of said pinions to shift it and having a recess, a control part mounted to oscillate and move longitudinally along an axis parallel with said sup ports, a finger on said control part adapted to engage the recess of either of said members, ins mounted in the gear casing and paral el with said supports, these pins having their ends in front of and spaced from move longitudinally and angularly in the gear casing, a shaft flexibly connected with said member, means for slidably and rotatably supporting said shaft, a floating lever and a' support therefor, and means interconnecting said floating lever and'shaft to shift this latter by the operation of the said lever.

3. In a chan e speed gear comprising a plurality of sli able pinions, slidable parts shifting said pinions, a member mounted to move longitudinally and angularly in the gear casing, a tubular shaft flexibly connected with said member, a ball headed sup port entering said shaft, a floating lever and a support therefor, and means interconnecting said fioating lever and shaft to shift this latter by the operation of said lever.

.4. In a chan e speed gear comprising a plurality of sli able pinions, slidable parts shifting said inions, a member mounted to move longitu inally and angularly in the gear casing, a shaft flexibly connected with said member, a lever having a ball pivot, a ball-socket for said pivot, means for locking said pivot and lever in position with respect to said socket, and cooperating ball and socket on said lever and shaft for shifting and oscillating this latter and said member by the manipulation of the lever.

In testimony whereof, I have signed my name to this specification.

CENZO LANG. 

